用于云计算数据访问的多阶段身份认证

Multi-stage identity authentication for cloud computing data access

为有效解决云计算数据访问服务的隐私性和安全性问题,提出一种基于多阶段身份认证的云计算隐私保护数据访问算法。在注册阶段基于抑制方法将用户的个人信息存贮在云服务器中,在认证阶段采用口令、一次性令牌和条件属性来高效验证客户端的身份,在数据访问阶段使用数据加密/解密以便在云端实现更高的数据安全级别。将仿真结果与其它算法进行比较,验证了所提算法在隐私保护率、计算复杂度和身份认证精度方面均优于其它方法。

To effectively solve the privacy and security issues of cloud computing data access services,a cloud computing privacy protection data access algorithm based on multi-stage identity authentication was proposed.In the registration phase,the user’s personal information was stored in the cloud server based on the inhibition method.In the authentication phase,the password,one-time token and conditional attributes were used to verify the identity of the client efficiently.In the data access phase,data encryption/decryption was used to achieve a higher level of data security in the cloud.By comparing the simulation results with other algorithms,it is verified that the proposed algorithm is better than other methods in terms of privacy protection rate,computational complexity and identity authentication accuracy.